import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { start, done } from '@/utils/nprogress';



// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_API_URL, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 5000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  
  config => {
    // do something before request is sent
    start();

    if (store.getters.token&&store.getters.token!=null&&store.getters.token.length>0) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['token'] = store.getters.token
    }
    return config
  },
  error => {
    // do something with request error
   // console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    done();
    const res = response.data
    // if the custom code is not 20000, it is judged as an error.
    if (response.status !== 200) {
      Message({
        message: res.message || 'Error',
        type: 'error',
        duration: 5 * 1000
      })
      // return Promise.reject(new Error(res.message || 'Error'))
    } else {
      return res
    }
  },
  error => {
    done();
    if (error+""=="AxiosError: Request failed with status code 401" ) {
      // to re-login，token失效，删除本地token
      return {code:200,msg:"请重新登录"}
    }
    // console.log('err' + error) // for debug
    
    Message({
      message: error.message,
      type: 'error',
      duration: 5 * 1000
    })
    // return Promise.reject(error)
    return res
  }
)

export default service
